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1. 发明授权

US09509541B1 Crest factor reduction 有权
标题翻译：波峰因数降低
公开(公告)号：US09509541B1
公开(公告)日：2016-11-29
申请号：US14822808
申请日：2015-08-10
申请人： Altiostar Networks, Inc.
发明人： John N. Ibison
IPC分类号： H04K1/10 , H04L27/26 , G06F17/18
CPC分类号： H04L27/2623
摘要： A method is presented which performs crest factor reduction (CFR) on a digitized signal. The method may include determining one or more peak values in a series of data samples of a communication signal, and/or generating a peak queue comprising the one or more peak values that exceed a threshold value and a corresponding index values for each peak value. The method may further include generating, from the peak queue, an entry to a clip table, the entry including a clip coefficient at the corresponding index value, updating the clip table to include a new clip coefficient at a new corresponding index value when the clip function squared at the new index value exceeds a scaled output power for an input power at the new corresponding index value, and/or clipping the series of data samples in a neighborhood of the peak value according to the clip function.
摘要翻译：提出了一种在数字化信号上执行波峰因数降低（CFR）的方法。该方法可以包括确定通信信号的一系列数据样本中的一个或多个峰值，和/或生成包括超过阈值的一个或多个峰值和每个峰值的相应索引值的峰值队列。该方法还可以包括从峰值队列生成到剪辑表的条目，该条目包括相应索引值处的剪辑系数，更新剪辑表以在剪辑时将新剪辑系数包括在新的对应索引值处在新的索引值处的函数平方超过在新的相应索引值处的输入功率的缩放的输出功率，和/或根据剪辑功能限制峰值附近的一系列数据样本。

2. 发明授权

US09510310B1 Time-alignment of signals 有权
标题翻译：信号的时间对齐
公开(公告)号：US09510310B1
公开(公告)日：2016-11-29
申请号：US14822787
申请日：2015-08-10
申请人： Altiostar Networks, Inc.
发明人： John N. Ibison
IPC分类号： H04L7/00 , H04W56/00
CPC分类号： H04W56/005
摘要： Data characterizing a first signal and a second signal can be received. A first stream of bits for the first signal and a second stream of bits for the second signal can be calculated based on the received data. Each bit in the first stream of bits can characterize a slope of a power of the first signal and each bit in the second stream of bits can characterize a slope of a power of the second signal. The first stream of bits and the second stream of bits can be compared bitwise at a plurality of time-alignment differences for matching bits. Based on the comparing a final time-alignment difference between the first signal and the second signal can be determined. At least one of the receiving, the calculating, the comparing, and the determining can be performed by at least one processor of at least one computing system.
摘要翻译：可以接收表征第一信号和第二信号的数据。可以基于接收到的数据来计算用于第一信号的第一比特流和用于第二信号的第二比特流。第一比特流中的每个比特可以表征第一信号的功率的斜率，并且第二比特流中的每个比特的特征可以表征第二信号的功率的斜率。比特的第一流和第二比特流可以按照多个时间对准差比特地进行比特比较，以便匹配比特。基于比较可以确定第一信号和第二信号之间的最终时间对准差。接收，计算，比较和确定中的至少一个可以由至少一个计算系统的至少一个处理器来执行。

3. 发明授权

US09628319B2 Time-alignment of signals suffering from quadrature errors 有权
公开(公告)号：US09628319B2
公开(公告)日：2017-04-18
申请号：US14822792
申请日：2015-08-10
申请人： Altiostar Networks, Inc.
发明人： John N. Ibison
IPC分类号： H04L5/12 , H04L27/38 , H04L1/20 , H04L27/36 , H04L7/00
CPC分类号： H04L27/3863 , H04L1/20 , H04L1/206 , H04L7/0029 , H04L27/36
摘要： Data is received characterizing a first signal and a second signal. The first signal and a function of the second signal is compared at a plurality of time-shifts to estimate a time-difference between the first signal and the second signal. The function of the second signal includes the second signal, a complex conjugate of the second signal, and a constant. The comparison is provided. At least one of receiving, comparing, and providing is performed by at least one processor of at least one computing system.

4. 发明授权

US09509489B1 Correction of quadrature modulation errors 有权
标题翻译：纠正正交调制误差
公开(公告)号：US09509489B1
公开(公告)日：2016-11-29
申请号：US14822813
申请日：2015-08-10
申请人： Altiostar Networks, Inc.
发明人： John N. Ibison
IPC分类号： H04L27/36 , H04L7/033 , H04L7/00 , H04L27/20
CPC分类号： H04L27/364 , H04L27/368
摘要： In one aspect a computer-implemented method is performed. The method may include capturing intermediate data samples for transmission by a wireless communications transmitter. The method may further include applying signal processing to the intermediate data samples, capturing output data samples after applying the signal processing, and/or determining quadrature correction coefficients from the intermediate data samples and the output data samples, wherein the quadrature correction coefficients remove quadrature errors caused by the signal processing. The method may further include applying the quadrature correction coefficients to a series of input data samples, wherein the intermediate data samples comprise the input data samples with the quadrature correction coefficients applied to the input data samples. The capturing the intermediate data samples, the applying the signal processing, the capturing the output data samples, the determining the quadrature correction coefficients, and the applying the quadrature correction coefficients may be performed by at least one processor.
摘要翻译：在一个方面，执行计算机实现的方法。该方法可以包括捕获中间数据样本以供无线通信发射机发射。该方法可以进一步包括对中间数据样本应用信号处理，在应用信号处理之后捕获输出数据样本，和/或从中间数据采样和输出数据样本确定正交校正系数，其中正交校正系数去除正交误差造成信号处理。该方法可以进一步包括将正交校正系数应用于一系列输入数据样本，其中中间数据样本包括施加到输入数据样本的正交校正系数的输入数据采样。捕获中间数据样本，应用信号处理，捕获输出数据样本，确定正交校正系数以及应用正交校正系数可以由至少一个处理器执行。

5. 发明申请

US20170048096A1 TIME-ALIGNMENT OF SIGNALS SUFFERING FROM QUADRATURE ERRORS 有权
标题翻译：从正交错误中消失的信号的时间对齐
公开(公告)号：US20170048096A1
公开(公告)日：2017-02-16
申请号：US14822792
申请日：2015-08-10
申请人： Altiostar Networks, Inc.
发明人： John N. Ibison
IPC分类号： H04L27/38 , H04L27/36 , H04L7/00 , H04L1/20
CPC分类号： H04L27/3863 , H04L1/20 , H04L1/206 , H04L7/0029 , H04L27/36
摘要： Data is received characterizing a first signal and a second signal. The first signal and a function of the second signal is compared at a plurality of time-shifts to estimate a time-difference between the first signal and the second signal. The function of the second signal includes the second signal, a complex conjugate of the second signal, and a constant. The comparison is provided. At least one of receiving, comparing, and providing is performed by at least one processor of at least one computing system.
摘要翻译：接收表征第一信号和第二信号的数据。在多个时移上比较第一信号和第二信号的功能，以估计第一信号和第二信号之间的时间差。第二信号的功能包括第二信号，第二信号的复共轭和常数。提供比较。由至少一个计算系统的至少一个处理器执行接收，比较和提供中的至少一个。

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